Mining and quarrying machine



C. S. ULDHOYD.

MINING AND QUARRYNG MACHINE APPLscMroN man Auml, |915. RNEwE u N0v. 1.1918.

Patented Nov. 18, 1919.

2 SHEETS-SHEET I.

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C. S. LDH'UYD.

MINING AND OUARRYING MACHINE. APPLlcAnoN FILED 11.16.11, 1915. nENEwEn Nov. 1. .12111.

2 SHEETS-SHEET 2.

CYRUS S.` OLDROYD, F CINCINNATT, (1I-H0.

MINING AND QUARRYING MACHINE.

Specification of Letters Patent.

Patented Nov.. 18, 1919..

Application led August 17, 1915, Serial No. 45,923. Renewed November 1, 191B. Serial No. 269,722.

To all whom.y it may concern:

Be it known that ll, CvnUs S; @Lenoir-D, a citizen of the United States, residing at Cincinnati, in the county of Hamilton and State of hio, have invented a new and useful llmprovemcnt in Minin and Quarry ing Machines, of which the following is a specification, reference being had to the accompanying drawing.

My invention relates particularly to machines used for under-cutting walls in mines and quarries, such machines being usually placed adjacent a wall in, a mine entry or room and moved toward or along such wall to causeA a rotary cutting device projecting forward from the machine to cut into the wall to prepare a portion thereo'f for breaking down. The object of my invention is to provide such a machine in which provision is made for making such wall cuts horizontally at did'erent elevations and also to ma ke such wall cuts along upright planes, at the will of the operator.

ln the accompanying drawings,

Figure 1 is a plan of a portion of a machine embodying my improvement;

Fig. 2 is a side elevation of the same machine, portions being broken away;

lFig. 3 is a front elevation of the same machine;

Fig. Il is a section on the line, 1l-d, of lfig. 2.

Referring to said drawings, it, is a truck having carrying wheels, 1 which rest on track rails, lt. B is a frame mounted upon the circular base, 2, of the truck, it, to turn like a turntable on an upright axle, 8. Rollers, B', are attached to the iframe, B, and rest on the circular base, 2. Above the truck, the frame, B, has a level portion B2 on which rests an electric motor, lill, having its axis horizontal. Un the forward end of the armature shaft lll of the motor is a bevel gear wheel, 5, which meshes with a bevel gear wheel, 6, which is fixed around an upright shaft, 7. .The upper4 end of said shaft rests in a bearing, 9, in abroad, horizontal, forward-directed arm, 9, and the lower end of said shaft rests in a bearing, 19, ina broad horizontal forward-directed arm, 11, the lower face of which almost touches the track rails, lt.

lForward of the shaft 7, and at opposite sides of the extended axis lof the w eel, 5, and the motor are two upright screw shafts, 12. Each screw shaft extends through a wheel, 25.

17, and has a lug, 22, to extend downward between two lugs, 19. y l/Vhen in such posi tion, the handle, 20, may be swung in a horizontal plane on the axis of the Shaft, 17, .whereby the wheel, 16, and said shaft are rotated. The rotation of said wheel causes the rotation.` of the gear wheels, 15, the rotation of the latter being in the same direction.

The Screw threads on the shafts, 12, entend in the same direction. Said shafts extend through a horizontal cross-head, 23, the latter bemghllthreaded to fit the threads of the shafts. ence, the rotation of the wheel, 16, leads to the raising or lowering of the crosshead, 23, for the .latter must rise or fall when said shafts are turned.

f t horizontal tool shaft, 24:, extends through and has a bearing in the cross-head midway between the screw shafts. A bevel ear wheel, 25, surrounds the shaft, 7, and is slidable lengthwise, but not rotatable thereon, a feather, 26, on the shaft, 7, preventing such rotation. Said wheel has a hub, 29, which has a circumferential channel, 27, which is entered by an arm, 28, extending rearward from the cross-head, 23, and around the hub. Thus said arm holds said hub against both downward and upward movement relative to the cross-head. Un the adjacent end of the shaft,.24, is a bevel gear wheel, 30, meshing with the gear Since these two wheels are supported by the cross-head, they remain in mesh with each other, and since the wheel, 25, can slide along the length of the shaft, 7, but is held for rotation with said shaft, power is transmitted from the motor through thewheels, 5 and f3, the shaft, 7 the wheels, and 30, to the tool shaft, 24, regardless of the elevation of the cross-head and said shaft.

t rotary cutting tool, 31, adapted to cut while moving endwise and also while moving sidewise, is secured to the forward end of the tool shaft, 24. The parts are preferably so proportioned as to bring the lower a end then, without swinging the frame, A'

portion of the cutting tool tothe level of the bottom of the rails, R, when the cross-head, 23, is at its lower limit, and the slant of the tool shaft from thje horizontal is made such as to bring the lower face of the tool into the horizontal, in order that it may cut a level floor.

Then the cross-head is in its lowest position, and the ltool is being rotated, the machine maybe pushed forward to drive the tool forward into the wall. Then the frame, B, may be turned on the truck, A, to move the cutting tool horizontally.v In this way the cut may be made as wide horizontally as the horizontal range of the frame, B. If

it is desired to make a horizontal cut at a higher-level, the cross-head, 23, is raised to s1 ich level by turning the wheel, 16. An upright cut may be made by pushing the tool endwise into the wall at a chosen elevation i raismg or-lowering the cross-head. If it 1s 'desired to make a diagonal cut, this may be A done simultaneously rotating the cutting tool, swinging the frame, B, and changing the` elevation of the cross-head. The slant of such diagonal cut may be varied by varying the ratio between the lateral movement of the frame, B, and the upright movement of the cross-head. a

It is to be observed that the mechanism used for controlling the cross-head is low enough to permit the use of the machine in a mine having a low ceiling.

I claim as my invention,

l. In amachine of the nature described, the combination of a truck, a frame extending forward of and downward in front of the truck, the forward part of said frame being movable horizontally and transversely to the travel line of the truck, upright vscrew shaft mechanism supported by the forward part of said frame, an approximately horizontal tool support supported by said screw mechanism for up-and-down adjustment,`an approximately horizontal tool on said support, and driving means located on the-machine in operative relation with said tool for actuating the latter, substantially as described.

2. In a. machine of the nature described,

the combination of a truck, a frame extending forward of and downward in front of the truck, the forward part of said-frame being movable horizontally and transversely to the travel line of the truck, upright screw shaft mechanism supported by the forward part of said frame, an approximately horizontal tool support supported by said screw mechanism for up-and-dwn adjustment, an approximately horizontal tool on said support, an upright shaft adjacent said support, gearing silidable on. said shaft and in operative re ation with said tool, and driving means located on the machine in oper- .part of said frame, an' approximately horizontal tool support supported by said screw mechanism for up-and-down adjustment, an approximately horizontal tool on said support, an upright shaft adjacent said support,`gearing slidable on said shaft and in operative relation with said tool, and a motor locatedon said frame in operative relation with said upright shaft for rotating the latter, substantially as described.

LLIn a machine of the nature described, the combination of carrying wheels, an upper forward-directed arm, a lower forwarddirected arm located in front of the carrying wheels, said arms being` movable horizontally and transversely to the travel line of the truck, upright screw shaft mechanism extending from one of said arms to the other, an approximately horizontal tool support supported by said screw mechanism for up-and-down adjustment, an approximately horizontal tool'on said support, an upright shaft adjacent said support, gearing slidable on said shaft and in operative relation with said tool, and driving means located on the machine in operative relation with said upright shaft for rotating the latter, substantially as described.

5. In a machine of the nature described, the combination ofatruck, a frame mounted upon and extending forward of and downward in front of the truck and ermitting lateral movement of said forward3 part, upright screw shaft mechanism on said forward part of said frame, an approximately horizontal tool support supported by said screw mechanism for lip-and-down adjustment, an approximately horizontal tool on said support, an upright shaft adjacent said support, gearing slidable on said shaft and in operative relation with said tool, and driving means located on the machine in operative relation with said upright shaft for rotating the latter, substantially as described.

6. In a machine of the nature described, the combination of a truck, a frame mounted upon and extending forward of and downward in front of the truck and permitting lateral movelnent of said forward part, upright screw shaft mechanism on said forward part of said frame, an approximately horizontal tool support supported by said screw mechanism for up-and-down adjustment, an approximately horizontal tool on said support, an upright shaft adjacent said support, gearing slidable on said shaft and in operative relation with said tool, and a motor located on said frame in operative relation for rotating the latter,- substantially as de scribed.

7. ln a machine of the nature described, the conflbination of a carrying portion, a frame supported upon said carrying portion to permit moving the forward part of said frame laterally, a tool shaft support movable up and down on said frame on an up right line, an upright shaft on said frame adjacent said support, gearing slidable on said shaft and in operative relation with said tool shaft,l and drivingr means located on said frame in operative relation with said upright shaft for rotating' the latter, substantially as described.

8; In a machine of the nature described,

the combination of a carrying portion, a frame supported upon said carrying portion for turning on an upright axis and extend ing forward of and downward in front of said carrying portion. a tool shaft support located on the forward portion of said frame and movable up and down thereon on an with said upright shaft uprightline, an upright shaft on said frame adjacent said support, vgearing slidalole on said shaft and in operative relation with said tool shaft,4and driving means located on the machine in operative relation with said upright shaft for rotating the latter, substantially as described.

9. In a machine of the'nature described, the combination of a carrying portion comprising carrying wheels, a frame `supported upon and extending across the Wheel base of said carrying portion to permit moving the forward part of said .frame laterally, a tool shaft support movable np and down on the forward part of saidr frame on an upright line, an upright shaft on the forward part of said frame and adjacent said snpport, gearing slidable on said shaft and in operative relation with said tool shaft, and driving means located on the machine in operative relation with said upright shaft for rotating lthe latter,,substantially as described. Y V v In testimony whereof I have signed my name, in presenceof two witnesses, this 12th. day of August, in the year one thousand nine hundred and fifteen.

CYRUS S. OLDROYD. 

